I have been having alsorts of tests for a chronic cough which ive had for years they thought it was acid rflux but and have been t detected mild bronchitis with different medication and tests endoscope etc no reflux detected have severe pain inmainly in breastbone into throat and up into head mainly in evening is it bad heartburn which I don t normally suffer with very uncomfortable what can I do or take to help as long as its nothing to worry about I am 67yrs old thankyou